Body Weight Countdown
- As fast as you can, do 10 squats, 10 push-ups, and 10 full sit-ups.
- Then do nine reps of each. Then eight, seven, six, and so forth, until you reach one rep of each exercise.
- Rest halfway through the exercise, at five reps, for 30-45 seconds and then continue.
- After finishing, rest for three minutes and repeat the exercise.
- Cool down for 10 minutes when completed.
- Record your time and try to improve each week.
Source: Shape Magazine